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28 November, 22:09

there are two binary compounds of mercury and oxygen. Heating 0.6498g of one of the compounds leaves a residue of 0.6018g of the other compound results in a mass loss of 0.016g. determibe the emorical formulka of each compound

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  1. 29 November, 01:39
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    The question is incomplete, here is its complete form:

    There are two binary compounds of mercury and oxygen. Heating either of them results in the decomposition of the compound, with oxygen gas escaping into the atmosphere while leaving a residue of pure mercury. Heating 0.6498 g of one of the compounds leaves a residue of 0.6018 g. Heating 0.4172 g of the other compound results in a mass loss of 0.016 g. Determine the empirical formula of each compound.

    Answer:

    HgO and Hg2O

    Explanation:

    Let's start with the first compound. It is made of 0.6018 g mercury and 0.048 g oxygen which adds up to the 0.6498 g in the question

    Mercury Oxygen

    0.6018/200.59 0.048/16 [divide each mass by relative molar masses]

    0.003 0.003 [then we divide both by 0.003]

    1 1

    Now we go to the second compound

    Mercury Oxygen

    0.4012/200.59 0.016/16 [divide each mass by relative molar masses]

    0.002 0.001 [then we divide both by 0.001]

    2 1
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